Installing sealing flange: VW Golf V / Jetta 1.6 (BSE, BSF, CCSA, CMXA)
Step-by-step installing sealing flange for the VW Golf V / Jetta 1.6: 10 steps, 3 torque figures. What to remove, what to tighten and to how many Nm, what.
Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Golf V / Jetta (1K, 2003–2009); platform code AJ5
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- Cut off tube nozzle at forward marking (∅ of nozzle approx. 3 mm).
- Remove excess sealant. Crankshaft journal and sealing surface of oil seal must be free of sealant.
- The contact surface between toothed belt pulley and crankshaft must be free of oil.Bolt for toothed belt pulley must be renewed.Thread and shoulder must be free of oil and grease.
🔩 Torque settings
Values can differ between engine variants — check the code stamped on your block.
| Torque | Fastener / step |
|---|---|
| 15 Nm (11 lb-ft) | Tighten sealing flange securing bolts diagonally and alternately |
| 90 Nm (66 lb-ft) | Tighten new bolt for toothed belt pulley |
| 90 Nm (66 lb-ft) | Tighten new centre bolt |
ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.
📋 Procedure
- Before applying sealant bead, cover sealing surface of oil seal with a clean cloth.
- Cut off tube nozzle at forward marking (∅ of nozzle approx. 3 mm).
- Apply sealant bead of about 2…3 mm as shown (arrows) to clean sealing surface of sealing flange. [Note: The sealing compound bead must not be thicker that 2…3 mm. Otherwise excessive sealing compound will enter the sump and may block the oil suction pipe strainer.Observe expiry date of sealing compound.The sealing flange must be installed within 5 minutes after applying the silicone sealant.Sealing compound must dry for approx. 30 minutes after installation. Only then fill with engine oil.]
- Fit sealing flange immediately and lightly tighten all bolts.
- Tighten sealing flange securing bolts diagonally and alternately.
- Remove excess sealant. Crankshaft journal and sealing surface of oil seal must be free of sealant.
- Install sump .
- Install new oil seal for crankshaft .
- Install crankshaft toothed belt pulley and lock with counterhold3415. [Note: The contact surface between toothed belt pulley and crankshaft must be free of oil.Bolt for toothed belt pulley must be renewed.Thread and shoulder must be free of oil and grease.]
- Tighten new bolt for toothed belt pulley to 90 Nm and turn 90° (1/4 turn) further (turning further can be done in several stages). — 90 Nm (66 lb-ft)
Other VW procedures
- Draining coolant
- Checking injectors for leaks, engine codes BSE, BSF, CCSA, CMXA
- Checking semi-automatic tensioning roller for toothed belt
- Checking fuel pump (electrical test) - TFSI and 6-cylinder engines
- Adapting kick-down function - vehicles with automatic gearbox or dual clutch gearbox
- Removing engine · 41 torque figures
- Removing and installing camshaft – VW Golf Cabriolet · 47 torque figures
- Adjusting valve timing – VW Passat B5 · 83 torque figures
- Removing and installing camshafts – VW Passat B6 · 39 torque figures
- Removing and installing coolant pump · 53 torque figures
Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.